Online Calculators - Homemade Circuit Projects

Looking for online calculators to calculate electronic circuit parameters or for designing circuit modules? This page gives you a range of online electronic circuit calculators which you can use to calculate any desired electronic parameter in order to design crucial electronic circuits with extreme precision.

TL431 Calculator

This calculator can be used to calculate the output voltage of a TL431 circuit when its R1, R2 resistors are known and entered in the required fields.

NAND/NOT Gate RC Values Calculator

Now this calculator will simply take the target frequency from you, which you want to achieve from the oscillator, and then it will calculate and provide a list of resistor/capacitor combinations which can be used to achieve your target frequency.

NOT/NAND Gate Frequency Calculator

This calculator will take the resistor and capacitor values from you and give you the required frequency output results.

IC 4060 Calculator

This calculator can be used to calculate the oscillatory frequency of the IC 4060 and the corresponding timing delays or the ON/OFF delay periods across all its outputs.

Battery Back up Time Calculator:

Here we can calculate how much time our battery can keep supplying power to load, after it is fully charged, depending on Ah and watt.

Capacitance Reactance Calculator:

So this one helps us to find how much resistance or opposition a capacitor will give in AC circuit, based on its value and frequency.

IC 555 Astable Calculator:

We can use this to find how fast or how slow our 555 will blink or oscillate in astable mode, also shows duty cycle and time delay.

IC 555 Monostable Calculator:

This tells us the time delay of one single pulse output from 555 when we trigger it once, by putting resistor and capacitor values.

Inductance Calculator:

This one helps us calculate coil inductance based on number of turns, diameter, length, and type of core, for any custom made coil.

LC Resonance Calculator:

We can use this to find exact frequency where our inductor and capacitor will resonate together which is useful in filters and wireless circuits.

LM317, LM338, LM396 Calculator:

So this gives us the output voltage value for LM317 or LM338 regulator IC by just entering two resistor values in the feedback path.

Ohm’s Law Calculator:

This one solves for voltage, current, or resistance using Ohms Law, if we know any two of them then we can find the third one.

Phase Angle Phase Shift Calculator:

Here we can check how many degrees the voltage or current will shift in an RC or RL circuit, depending on frequency and component values.

Power Factor (PF) Calculator:

This helps us to calculate how efficient our electrical load is by finding power factor using real power and apparent power.

Reactance Calculator:

So this tool gives us either capacitive or inductive reactance, which means how much resistance we will get due to L or C in AC signal.

Transistor Astable Calculator:

This one tells how to make a transistor oscillator that blinks LEDs or makes square wave by calculating frequency and resistor-capacitor values.

Transistor base Resistor Calculator:

We can use this to find the correct resistor at base of BJT transistor, to turn it ON fully for switching or amplification.

Voltage Divider Calculator:

This tool gives output voltage when we divide any input voltage using two resistors, mostly used in sensor and biasing circuits.

Wire Current Calculator:

So here we can find how much current a specific wire size or gauge can carry safely without overheating or burning.

Zener Diode Calculator:

We can use this to calculate resistor value for zener diode so that it can give stable voltage output without getting damaged.

Filter Capacitor Calculator:

This calculator tells us what value of capacitor we should use to remove ripples and smoothen DC after a bridge rectifier.

Buck Converter Calculator:

We can use this to calculate the inductor, ripple current and other values to build a stable step-down buck converter circuit.

Boost Converter Calculator:

This one helps us calculate how to step up voltage using boost converter by finding duty cycle and inductor etc.

Solar Panel, Inverter, Battery Calculator:

So this one gives us complete calculation for solar system including how much panel, battery and inverter we need for a certain load.

SMPS Transformer Calculator:

This gives turns ratio, primary, secondary winding data, and core size for making SMPS high frequency transformer.

IC SG3525, SG3524 Calculator:

We can calculate timing resistor, capacitor, frequency, and duty cycle for SG3525 or SG3524 PWM controller using this one.

Inverter LC Filter Calculator:

You can use this LC filter calculator to precisely calculate the inductor and the capacitor values for the LC filter across the inverter output to filter and smooth the output AC waveform.

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